(Click on image to enlarge)
Looking at the graph above could be misleading. While it is true world trade of butter has fallen, the U.S. export volume has grown. In 2009 the U.S exported 22,827 metric tons of actual butter (HTS 040510). In 2010, the U.S. exported 45,557 tons. In January of 2011, there was an increase of 35.4% in butter exports.
The lesson here is most legislation regarding dairy will have world trade and globalism leading the way. This will not necessarily be a winning ticket for U.S. dairy farmers.